{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "However , the torsadogenic potential of metoclopramide , a commonly used antiemetic and prokinetic drug , has not been reported in the literature , despite its chemical similarity to procainamide ."}
{"Disease": [], "Chemical": ["metoclopramide", "procainamide"]}